All in-built antonyms

adj in-built

• learned — having much knowledge; scholarly; erudite: learned professors.
• added — You use added to say that something has more of a particular thing or quality.
• acquired — obtained, through buying or being given
• incidental — happening or likely to happen in an unplanned or subordinate conjunction with something else.
• superficial — being at, on, or near the surface: a superficial wound.
• surface — the outer face, outside, or exterior boundary of a thing; outermost or uppermost layer or area.
• auxiliary — An auxiliary is a person who is employed to assist other people in their work. Auxiliaries are often medical workers or members of the armed forces.
• minor — lesser, as in size, extent, or importance, or being or noting the lesser of two: a minor share.
• unimportant — of much or great significance or consequence: an important event in world history.
• secondary — next after the first in order, place, time, etc.